This constitutes a truly relaxing and rejuvenating brain. Even people who take sleeping pills to sleep but could not sleep until the REM sleep and said that this was not asleep. Or is yet to wake up refreshed, not sleeping like me.
This is considered a rest and restoration of the brain. The sleeping pills, even sleeping, it's true, but will not sleep until the REM, sleep and you don't sleep. Or wake up still fresh and didn't sleep.